2. 外语
  3. The two scientists were quarrelling at the beginning of the story, because ______. They did an experiment because they ______.

The two scientists were quarrelling at the beginning of the story, because ______. They did an experiment because they ______.

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问题 The two scientists were quarrelling at the beginning of the story, because ______.
They did an experiment because they ______.
选项 A、wanted to know whose watch was better
B、liked their lab
C、wanted to repair their watches
D、had a basin of water in their lab
答案A
解析 从文章第一段第二句得知：他们都是科学家，所以他们决定以做实验的方法来测定的表更好。
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